Envelope



Sept. 7 1926. 1,598,983 oy J. OLM

ENVELOPE Filed Sept. 6, 1921 l Fig, l

Patented Sept. 7, 1926.

UNITED lsra 'rss APA'rsN'r oFFIc-E.

OSCAR- 3. OLM, OF MINNEAPOLIS, MINNESOTA, ASSIG-NOR TO NORTHWESTERN PAPER GOODS CO., OF ST. PAUL, MINNESOTA, .A CORPORATION OF MINNESOTA.

' ENvELorn.

Application led September 6,1921. Serial N'o. 498,750.

` the same cost as the ordinary one compartwill be accepte ment envelope. This is accomplished by making the body of the envelope out of avs1ngle piece of material which forms.a very important part of this invention. It 1s essential in an envelope of this character which is adapted to carry matter requiringdifferent postal rates lto dprovide an envelope which by the postal department with assurance that the compartments will not separate from each other and which 1s 'of a construction of the same compactness as the ordinary envelope., This is particularl true in-sending automobilelicenses throug the mail. Obviously, this invention .is different from other envelopes which are designed to accomplish this purpose and whlch consist of two separate complete envelopes.

.Such inventions are expensive to manufacture and are apt to separate which makes a distinct disadvantage in such a construction.

By forming my envelope out of one single piece of material, the same is folded and glued in a mannerto form separate compartments,-th-us 'requiring practically no 'more labor than the making of the ordinary en velope and but a very little more material.

Another feature of the invention 1s the closing iaps for the different compartments Awhich are arranged adjacent each other which allows the easy insertion of matter into the different compartments of the envelope. y

In the drawings forming part of this specification:

Figure 1 is a front elevation of my envelope with the closing fiaps in open position.

Figure 2 is a section on the line 2 -2 of then folded ffigure 1 showing the aps in closed posiion.

Figure 3 is a Figure 1.

Figure 4 illustrates a ment ofthe envelope as it is blanked out from a single piece of material. c

Figure 5 illustrates an alternative geometrical development of my envelope.

l In the drawings, the envelope A is of a rectangular shape having a body portion v1() which is formed from a single piece of material and is blanked out as illustrated in Figures 4 and 5. Y

The body portion 10 is formed with a back portion ll'from which extend portions 12 and 13 along one side while the portion 14 extends from the opposite side thereof.

'lhe closlngtlap 15 is formed extending from one lend of the back 11 and a short iap 15 projects from lthe opposite end of the section of the line 3-'3 of geometrical develop- Vbody portion.

The portion 13 is adapted to be folded over'onto the The member' 14 is folded over onto the member 11- along the line 17 and then the portions 12 and 13l are folded over onto the ortion 11 along the line 18 and adapte to overlap the which they are glued. The en'd flap 15nis over on the line 20 and secured by gluing to the overlapping portions 12 and 14.` In this manner the portion 13 is entirely enclosed beneath the portions 12 and 14 and the back 11 and forms one side of the separate compartment B extending from one portion `12 along the line 16.v

edge 19 of theportion 14 toend to the other of the envelope while th'e Y back 11 and the portions 12 and 14 form the main compartment C. The compartment B is considerably smaller than the compartment C but both compartments extend in the' saine longitudinal direction4 of the envelope.

The portion 13 is formed'with a closureflap 2 2 which has the ordinary gluesurface so that the flap 22 can be secured to close the compartment B. The portion l2 can be formed with the ordinary envelope window opening 23 so as to disclose the address written on the article adapted to -be enclosed in the compartment B from the outside of the envelope. The compartment B is particu,- larly adapted to carry'rst class mail matter Q y Y y negates and when the flap 22 is secured the contents of the compartment 'B is enclosed as required for first class mail matter.

The compartment C is provided wlth the enclosing flap 15 adjacent to the enclosing flap 22 and at the same end of the envelope A but this flap does not have any glue or any means for permanently gluing the same but can be inserted between the s1des form ing the compartment C or held closed 1n any other suitable manner. The contents of the compartment C must be readily accessible to the postal authorities so that the same ca n be inspected wheneverit is desired. In this manner the envelope A can carry in the com.- partment C such matter as requires a lower postal rate than vthe matter carried in the compartment B.

The inventlon includes the essential features of making the envelope A in a certain manner. This is accomplished primarily hy the portion 13 which is folded on the line 16 onto the portion 12 and in turn both 12 and 13 while folded together are folded over onto and secured to the edge of the portion 14 and adjacent to the portion 11. This construction of envelope is very simple lto make. It does not require but a very little more labor than the ordinary envelope and the only extra material is that which is required to make the portion 13. This construction provides va very Hat 'or compact receptacle or envelope Ain which separate compartments are arranged. Envelope A is formed from the sheet material 10 by four distinct folds of the same, the first fold being along the line 17, the second along the line 16 and then along the line 18 after which the short flap 16 is folded over along the line 20, thus in the construction of this envelope there is only'one more fold than in the ordinary envelope, in making up the body of the same.

In Figure 5 the alternative geometrical development of my envelope illustrates the portion 13 of approximatelyhalf the length as it is illustrated. in Figure 4. In this construction the portion 13 is provided with a tongue or ap 24 which is glued to the portion 12 when the. portion 13 is folded' over onto the same. lIn forming `up this construction of my envelo e the length of the compartmentl B Woul be considerably shorter than that illustrated by the geometrical development of the same in Figure 4. In this form of myenvelo e less material ywould be required to make t e member 13, and where on y a. small compartment B is required this construction is very adaptable.

Simplicity of construction is of primary importance in my envelope and it is obvious that the compartments B and C are securely attached together so that it would be practically impossible `for them to be separated during ordinary use in the mails.

envelope and I desire to have it understoodthat I do not Wish to confine my invention to the exact form shown but wish to protect the same within the scope of the following claims.

l claim- 1. A two compartment envelope formed from a single piece of material, a body portion adaptedto form one wall of one of the compartments of said envelope, long and short flaps extending from oppositely disposed sides of said body portion, saidlong flap being folded to form a second compartment, an address window formed in one of said flaps, a single flap for covering one end of. both of the compartments of said envelope, and independent flaps for closing each of the compartments of said envelope.

2. An envelope formed from a piece of sheet material, including a back portion, aY

portion extending from one side of said back portion adapted to form a part of the front of said envelopeand a second portion extending from the other side of said envelope adapted to form the other part of the front of said-envelope, said second porv tion being folded on itself in a manner to form a compartment in the front of said envelope which is separate from the main compartment formed by the front and back Walls of said envelope and a closure flap for each of the said compartments of said envelope.

3. An envelope including -a main compartment and a secondary compartment formed from a single piece of material, one wall of said main compartment 'being formed by a single sheet of material, ila s extending lfrom said wall, one of said aps being folded over on to itself to form the secondary compartment said folded-over flap being united with the flap extending from the opposite side of said wall of said envelope to form the other wall of said envelope, an end flap for uniting the folded-over iaps to close one end'of the main compartment, and separate closure flaps for said main and secondary compartment.

4. An envelope, including a compartment formed with front and back walls, said front wall including a long and a short flap, the long flap being folded on itself to form the walls of a separate compartment and said long and short flaps being secured together to form the front wall of said compartment, a single flap adapted to be secured to the ends of said long and short aps to form a closure for the main compartment of said envelope and separate flaps for the respective compartments of said envelope.

5. In a mail container of the class de-l scribed, consisting of a single sheet of material having extensions from the main body thereof some of which are adapted to be 10 unfinished Wall of the other receptacle; and 15 means to seal the ends of said receptacles.

OSCAR J. OLM. 

